US9056355B2 - Lathe machining member - Google Patents
Lathe machining member Download PDFInfo
- Publication number
- US9056355B2 US9056355B2 US12/737,555 US73755509A US9056355B2 US 9056355 B2 US9056355 B2 US 9056355B2 US 73755509 A US73755509 A US 73755509A US 9056355 B2 US9056355 B2 US 9056355B2
- Authority
- US
- United States
- Prior art keywords
- core portion
- lathe machining
- lathe
- machining member
- hollow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active, expires
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B1/00—Methods for turning or working essentially requiring the use of turning-machines; Use of auxiliary equipment in connection with such methods
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C1/00—Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B5/00—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/062—Work-clamping means adapted for holding workpieces having a special form or being made from a special material
- B23Q3/064—Work-clamping means adapted for holding workpieces having a special form or being made from a special material for holding elongated workpieces, e.g. pipes, bars or profiles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/062—Work-clamping means adapted for holding workpieces having a special form or being made from a special material
- B23Q3/065—Work-clamping means adapted for holding workpieces having a special form or being made from a special material for holding workpieces being specially deformable, e.g. made from thin-walled or elastic material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2215/00—Details of workpieces
- B23B2215/64—Thin walled components
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2222/00—Materials of tools or workpieces composed of metals, alloys or metal matrices
- B23B2222/12—Brass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2222/00—Materials of tools or workpieces composed of metals, alloys or metal matrices
- B23B2222/21—Copper
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2222/00—Materials of tools or workpieces composed of metals, alloys or metal matrices
- B23B2222/24—Gold
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2222/00—Materials of tools or workpieces composed of metals, alloys or metal matrices
- B23B2222/68—Palladium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2222/00—Materials of tools or workpieces composed of metals, alloys or metal matrices
- B23B2222/72—Platinum
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2222/00—Materials of tools or workpieces composed of metals, alloys or metal matrices
- B23B2222/76—Silver
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12229—Intermediate article [e.g., blank, etc.]
- Y10T428/12236—Panel having nonrectangular perimeter
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12771—Transition metal-base component
- Y10T428/12861—Group VIII or IB metal-base component
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12771—Transition metal-base component
- Y10T428/12861—Group VIII or IB metal-base component
- Y10T428/12875—Platinum group metal-base component
Definitions
- the present invention relates to a lathe machining member that is mounted on a lathe to be lathe machined.
- Patent Literature 1 Japanese Laid-open Patent Publication No. 2003-291002
- the present invention has been made in view of the above, and it is an object of the present invention to provide a lathe machining member that, when forming a product made of a rare and expensive material by lathe machining, is capable of reducing waste of such material and reducing costs.
- a lathe machining member that is mounted on a lathe to be lathe machined, includes: a cylindrical core portion, at least a part of which is made of a noble metal alloy and which has a diameter larger than a maximum diameter of a shape obtained by lathe machining; and a hollow-cylindrical peripheral portion made of a material different from the material of the core portion, wherein the core portion is arranged in a hollow portion of the peripheral portion with no space.
- the core portion includes a hollow-cylindrical outer core portion; and an inner core portion that is arranged in a hollow portion of the outer core portion with no space, wherein one of the outer core portion and the inner core portion is made of the noble metal alloy and the other one of the outer core portion and the inner core portion is made of a material different from the noble metal alloy.
- a diameter of the inner core portion is smaller than the maximum diameter.
- the peripheral portion is made of an alloy material.
- the alloy material is one material selected from the group consisting of copper-nickel silver, silver-copper alloy, brass, phosphor bronze, and beryllium copper.
- the alloy material is one material selected from the group consisting of free-cutting brass, free-cutting phosphor bronze, free cutting nickel silver, and free-cutting beryllium copper.
- the peripheral portion is made of iron.
- a cylindrical core portion at least a part of which is made of a noble metal alloy and which has a diameter larger than a maximum diameter of a shape obtained by lathe machining, and a hollow-cylindrical peripheral portion, which is made of a material different from the material of the core portion, are included.
- the core portion is arranged in a hollow portion of the peripheral portion with no space. Therefore, most of a portion to be cut off by using a lathe can be made of a material other than the noble metal alloy. Consequently, when a rare and expensive material such as noble metal alloy is used as a raw material for forming a machined product, it is possible to reduce waste of such material, enabling to reduce costs.
- FIG. 1 is a diagram illustrating a configuration of a lathe machining member according to a first embodiment of the present invention.
- FIG. 2 is a cross-sectional view taken along line A-A in FIG. 1 .
- FIG. 3 is a diagram illustrating an overview of lathe machining using the lathe machining member according to the first embodiment of the present invention.
- FIG. 4 is a diagram illustrating a configuration of a lathe machining member according to a second embodiment of the present invention.
- FIG. 5 is a cross-sectional view taken along line B-B in FIG. 4 .
- FIG. 6 is a diagram illustrating an overview of lathe machining using the lathe machining member according to the second embodiment of the present invention.
- FIG. 1 is a diagram illustrating a configuration of a lathe machining member according to a first embodiment of the present invention.
- FIG. 2 is a cross-sectional view taken along line A-A in FIG. 1 .
- a lathe machining member 1 includes a hollow-cylindrical peripheral portion 2 and a cylindrical core portion 3 that is made of a material different from a material of the peripheral portion 2 and that is arranged in a hollow portion of the peripheral portion 2 with no space.
- the peripheral portion 2 is made of an alloy material. Any one material selected from a group of, for example, copper-nickel silver, silver-copper alloy, brass, phosphor bronze, and beryllium copper can be applied as the alloy material. Further, any one material (free-cutting material) selected from a group of, for example, free-cutting brass, free-cutting phosphor bronze, free cutting nickel silver, and free-cutting beryllium copper can be applied as the alloy material. A material other than the alloy material (for example, iron) may be applied to the peripheral portion 2 .
- the core portion 3 is made of a noble metal alloy.
- a noble metal alloy for example, an alloy mainly consisting of silver (Ag), palladium (Pd), gold (Au), platinum (Pt), zinc (Zn), copper (Cu), iron (Fe), and nickel (Ni), an alloy mainly consisting of palladium, silver, and copper, or an alloy mainly consisting of silver, platinum, zinc, gold, and copper may be applied as the noble metal alloy.
- the lathe machining member 1 is formed by a wire drawing process or a drawing process such that a predetermined ratio is maintained between the diameter of the peripheral portion 2 and the diameter of the core portion 3 .
- FIG. 3 is a diagram illustrating an overview of lathe machining using the lathe machining member 1 .
- the lathe machining member 1 is mounted on and fixed to a chuck 4 of a lathe, starts and keeps rotating the chuck 4 at a predetermined rotation speed, and moves a cutting tool 5 from the right side to the left side in the figure to cut the lathe machining member 1 into a desired shape.
- the lathe machining member 1 may further be subjected to the wire drawing process or the drawing process before the lathe machining member 1 is cut using the lathe.
- the maximum diameter R of the lathe machining member 1 after cutting by the cutting tool 5 is smaller than the diameter r of the core portion 3 (R ⁇ r).
- the diameter r of the core portion 3 is set to be larger than the maximum diameter R of the shape obtained by lathe machining, and the machined product consists of only a noble metal alloy.
- the diameter r is determined such that the maximum diameter of the shape obtained by machining becomes smaller than the diameter r of the core portion 3 regardless of the machined shape.
- the cylindrical core portion 3 at least a part of which is made of a noble metal alloy and which has the diameter larger than the maximum diameter of a shape obtained by lathe machining, and the hollow-cylindrical peripheral portion 2 , which is made of a material different from the material of the core portion 3 , are included. Further, the core portion 3 is arranged in the hollow portion of the peripheral portion 2 with no space. Therefore, most of a portion to be cut off by using the lathe can be made of a material other than the noble metal alloy. Consequently, when a rare and expensive material such as a noble metal alloy is used as a raw material for forming a machined product, it is possible to reduce waste of such material, enabling to reduce costs.
- FIG. 4 is a diagram illustrating a configuration of a lathe machining member according to a second embodiment of the present invention.
- FIG. 5 is a cross-sectional view taken along line B-B in FIG. 4 .
- a lathe machining member 6 illustrated in FIG. 4 and FIG. 5 includes a hollow-cylindrical peripheral portion 7 and a cylindrical core portion 8 that is arranged in a hollow portion of the peripheral portion 7 with no space.
- the peripheral portion 7 is made of the same material as that of the peripheral portion 2 of the first embodiment.
- the core portion 8 includes a hollow-cylindrical outer core portion 81 and an inner core portion 82 that is arranged in a hollow portion of the outer core portion 81 with no space.
- One of the outer core portion 81 and the inner core portion 82 is made of a noble metal alloy similarly to the core portion 3 described above, and the other is made of metal, such as cooper or aluminum, other than the noble metal alloy.
- a combination of the materials of the outer core portion 81 and the inner core portion 82 may be determined depending on intended end-usage of a machined product.
- FIG. 6 is a diagram illustrating an overview of lathe machining using the lathe machining member 6 . Although it is not illustrated in FIG. 6 , a left end portion of the lathe machining member 6 in the figure is fixed to the chuck 4 similarly to FIG. 3 . Therefore, the lathe machining member 6 rotates along with the rotation of the chuck 4 .
- the diameter r 1 of the core portion 8 i.e., the diameter r 1 of the outer core portion 81
- the diameter r 2 of the inner core portion 82 is set to be smaller than the maximum diameter R′ (r 2 ⁇ R′). Accordingly, the machined product obtained by lathe machining has a two-layer structure formed of the outer core portion 81 and the inner core portion 82 .
- the core portion 8 includes the outer core portion 81 and the inner core portion 82 , which are made of mutually different metals (including a noble metal alloy), it is possible to combine optimal materials depending on use of the machined product.
- a multi-layer structure formed of more than two layers made of mutually different metals may be applied to the core portion instead of the two layers formed of the outer core portion and the inner core portion.
- the present invention is useful as a member to be mounted on a lathe to be lathe machined.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Turning (AREA)
Abstract
Description
-
- 1, 6 LATHE MACHINING MEMBER
- 2, 7 PERIPHERAL PORTION
- 3, 8 CORE PORTION
- 4 CHUCK
- 5 CUTTING TOOL
- 81 OUTER CORE PORTION
- 82 INNER CORE PORTION
Claims (16)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008-206239 | 2008-08-08 | ||
JP2008206239 | 2008-08-08 | ||
PCT/JP2009/064141 WO2010016609A1 (en) | 2008-08-08 | 2009-08-10 | Member for lathe machining |
Publications (2)
Publication Number | Publication Date |
---|---|
US20110123827A1 US20110123827A1 (en) | 2011-05-26 |
US9056355B2 true US9056355B2 (en) | 2015-06-16 |
Family
ID=41663817
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/737,555 Active 2029-09-16 US9056355B2 (en) | 2008-08-08 | 2009-08-10 | Lathe machining member |
Country Status (6)
Country | Link |
---|---|
US (1) | US9056355B2 (en) |
EP (1) | EP2311588A4 (en) |
JP (1) | JP5228049B2 (en) |
KR (1) | KR20110025979A (en) |
CN (1) | CN102105246B (en) |
WO (1) | WO2010016609A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120144969A1 (en) * | 2009-07-09 | 2012-06-14 | Citizen Machinery Miyano Co., Ltd. | Workpiece and gripping mechanism |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI442055B (en) * | 2010-07-05 | 2014-06-21 | Nhk Spring Co Ltd | Component for lathe processing, needle like component and contact probe |
Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2196303A (en) * | 1939-02-21 | 1940-04-09 | Mallory & Co Inc P R | Silver copper alloy |
US2527599A (en) * | 1946-11-30 | 1950-10-31 | Int Standard Electric Corp | Facsimile device |
US2872899A (en) * | 1957-12-02 | 1959-02-10 | Trespalacios Basilio | Writing instrument |
US2930115A (en) * | 1956-10-25 | 1960-03-29 | Sr Otto Dietzsch | Method of producing a modular body for controlled mixing or emission of a plurality of fluids |
US3982933A (en) * | 1972-11-02 | 1976-09-28 | Vereinigte Deutsche Metallwerke Ag | Brass alloy |
US4500027A (en) * | 1981-11-09 | 1985-02-19 | Nakajima Dokosho Company Limited | Method of manufacturing soldering tips |
JPH05309538A (en) | 1992-05-11 | 1993-11-22 | Seiko Seiki Co Ltd | Machining method for pipe |
JPH0650391A (en) | 1992-08-03 | 1994-02-22 | Matsuzawa Seisakusho:Kk | Seamless belt made of metal and manufacture thereof |
JPH07275924A (en) | 1994-03-31 | 1995-10-24 | Tokin Corp | Drawing method of tipd alloy |
JP2000343365A (en) | 1999-06-08 | 2000-12-12 | Dowa Mining Co Ltd | Workpiece holding jig and machining method for machine tool |
US6386423B1 (en) * | 1997-02-10 | 2002-05-14 | Delaware Capital Formation, Inc. | Soldering iron tips |
JP2003291002A (en) | 2002-03-29 | 2003-10-14 | Ndc Co Ltd | Multi-purpose jig for turning machine |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09267222A (en) * | 1996-04-01 | 1997-10-14 | Idemitsu Petrochem Co Ltd | Manufacture of seamless metallic belt |
CN2485066Y (en) * | 2001-03-05 | 2002-04-10 | 华南理工大学 | Composite stainless steel bar with carbon steel core |
US7687156B2 (en) * | 2005-08-18 | 2010-03-30 | Tdy Industries, Inc. | Composite cutting inserts and methods of making the same |
CN100496786C (en) * | 2007-09-07 | 2009-06-10 | 宝鸡市亚钛新金属有限公司 | Method for manufacturing titanium base composite pipe-rod materials |
-
2009
- 2009-08-10 EP EP09805089.1A patent/EP2311588A4/en not_active Withdrawn
- 2009-08-10 WO PCT/JP2009/064141 patent/WO2010016609A1/en active Application Filing
- 2009-08-10 KR KR1020117001622A patent/KR20110025979A/en active Search and Examination
- 2009-08-10 JP JP2010523916A patent/JP5228049B2/en active Active
- 2009-08-10 CN CN2009801291355A patent/CN102105246B/en not_active Expired - Fee Related
- 2009-08-10 US US12/737,555 patent/US9056355B2/en active Active
Patent Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2196303A (en) * | 1939-02-21 | 1940-04-09 | Mallory & Co Inc P R | Silver copper alloy |
US2527599A (en) * | 1946-11-30 | 1950-10-31 | Int Standard Electric Corp | Facsimile device |
US2930115A (en) * | 1956-10-25 | 1960-03-29 | Sr Otto Dietzsch | Method of producing a modular body for controlled mixing or emission of a plurality of fluids |
US2872899A (en) * | 1957-12-02 | 1959-02-10 | Trespalacios Basilio | Writing instrument |
US3982933A (en) * | 1972-11-02 | 1976-09-28 | Vereinigte Deutsche Metallwerke Ag | Brass alloy |
US4500027A (en) * | 1981-11-09 | 1985-02-19 | Nakajima Dokosho Company Limited | Method of manufacturing soldering tips |
JPH05309538A (en) | 1992-05-11 | 1993-11-22 | Seiko Seiki Co Ltd | Machining method for pipe |
JPH0650391A (en) | 1992-08-03 | 1994-02-22 | Matsuzawa Seisakusho:Kk | Seamless belt made of metal and manufacture thereof |
JPH07275924A (en) | 1994-03-31 | 1995-10-24 | Tokin Corp | Drawing method of tipd alloy |
US6386423B1 (en) * | 1997-02-10 | 2002-05-14 | Delaware Capital Formation, Inc. | Soldering iron tips |
JP2000343365A (en) | 1999-06-08 | 2000-12-12 | Dowa Mining Co Ltd | Workpiece holding jig and machining method for machine tool |
JP2003291002A (en) | 2002-03-29 | 2003-10-14 | Ndc Co Ltd | Multi-purpose jig for turning machine |
Non-Patent Citations (4)
Title |
---|
International Search Report dated Oct. 6, 2009, issued for PCT/JP2009/064141. |
Internet Archive Wayback Machine "http://www.mindat.org/min-2045.html" from Sep. 27, 2003. * |
Office Action for Japanese Patent Application 2010-523916 mailed on Jul. 3, 2012. |
Silver Data Sheet-posted online Nov. 19, 2002, 3 pages. * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120144969A1 (en) * | 2009-07-09 | 2012-06-14 | Citizen Machinery Miyano Co., Ltd. | Workpiece and gripping mechanism |
US9446452B2 (en) * | 2009-07-09 | 2016-09-20 | Citizen Holdings Co., Ltd. | Workpiece and gripping mechanism |
Also Published As
Publication number | Publication date |
---|---|
CN102105246B (en) | 2013-12-25 |
JP5228049B2 (en) | 2013-07-03 |
KR20110025979A (en) | 2011-03-14 |
US20110123827A1 (en) | 2011-05-26 |
EP2311588A1 (en) | 2011-04-20 |
CN102105246A (en) | 2011-06-22 |
JPWO2010016609A1 (en) | 2012-01-26 |
EP2311588A4 (en) | 2018-03-14 |
WO2010016609A1 (en) | 2010-02-11 |
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AS | Assignment |
Owner name: NHK SPRING CO., LTD., JAPAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:KAZAMA, TOSHIO;TAKAMURA, NORITOSHI;KAWARABAYASHI, TOMOHIRO;REEL/FRAME:025721/0740 Effective date: 20110107 |
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Free format text: PATENTED CASE |
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Free format text: PAYMENT OF MAINTENANCE FEE, 4TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1551); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY Year of fee payment: 4 |
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Free format text: PAYMENT OF MAINTENANCE FEE, 8TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1552); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY Year of fee payment: 8 |